M3 Mobile US-20X User manual

M3 US20 Series

User Manual

Korea Headquarter Seoul, Korea | sales@m3mobile.co.kr | +82-(0)2-574-0037

Europe Headquarter

Germany, Frankfurt | sales_eu@m3mobile.net | +49-(0)-6190-8021829

www.m3mobile.net

US20 Series

User Manual

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Revision

Release date of version 1.0: Jan. 2021

 Initial distribution

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User Manual

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Terms of Use

Thank you for purchasing M3 US20. This device provides high performance data collection and

mobile communications that meet industrial standards.

This user manual enables users to know the characteristics of M3 US20 series and how to use it.

 Please carefully read this manual before using the device to ensure safe and proper use,

as well as to prevent accidents that may occur when the device is used.

 This manual is created based on current status. The details on this manual may be

changed without prior notice.

 The descriptions of this manual are based on the device’s default settings.

 Images and screenshots are described with the latest software version.

 This manual is created under the assumption that the device has all options. For

detailed information on available options, contact the local distributor or refer to our

Web site (http://www.m3mobile.net).

 M3 Mobile does not have any legal responsibility for any performance problem that may

occur when a user uses an application that is supplied by a third party.

 M3 Mobile does not have any legal responsibility for any performance degradation or

compatibility problem that may occur because of the user’s mistake or negligence.

 M3 Mobile does not have any legal responsibility for copyright or patent breach by the

user.

 M3 Mobile can request all or part of the applications developed by a user or a third party.

The request is for the improvement of user environment or device performance.

 Higher OS version may be released after you purchase the device with the existing OS. If

you want to receive information on the latest OS, please contact your local distributor.

 This device can be operated in at least one Member State without infringing applicable

requirements on the use of radio spectrum.

 This manual may include technical or editing errors.

Copyright

This manual is protected under international copyright laws. No part of this manual may be

reproduced, distributed, translated, or transmitted in any form or by any means, electronic or

mechanical, including photocopying, recording, or storing in any information storage and

retrieval system, without the prior written permission of M3 Mobile.

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Trademarks

 M3 Mobile and M3 logos are registered as trademarks of M3 Mobile.

 M3 US20 is a registered trademark of M3 Mobile Co., Ltd.

 Google, Android, Google Play, YouTube, and other marks are trademarks of Google LLC.

Safety Rules

 Do not use the device while driving.

 Traffic accidents may occur.

 Observe the rules on device use while driving.

 Do not touch the power plug with wet hands.

 You may be electrocuted.

 Be careful when using the battery.

 Avoid causing a strong impact on the battery or breaking a hole through it with a sharp

thing.

 Do not put water on the battery or submerge it in water.

 Do not let the charging terminal of the battery come into contact with a metal material.

 Keep the device, battery, or charger away from direct heat sources.

 Heat may cause the device to become deformed, or an explosion or fire may occur.

 If the device is placed inside a vehicle, the battery may explode due to increase in

temperature.

 Do not use the device when there is thunder or lightning.

 Lightning or fire may cause the device to break down or you may be electrocuted.

 Turn off power of the device when device use is prohibited.

 Hazardous or wave-related problem may occur.

 Turn off power of the device when you board a plane. The electromagnetic waves

generated from the device may affect the plane’s electronic equipment.

 Turn off power of the device when you are in a hospital. Observe the device rules while

in a hospital. The electromagnetic waves generated from the device may affect the

medical equipment in the hospital.

 Turn off power of the device in hazardous areas where explosions may occur.

 Observe the regulations, instructions, or signs of a hazardous area where explosions

may occur.

 Turn off power of the device while refueling.

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 Be careful when a headset is used.

 Avoid long-term exposure to loud sounds to prevent damage to your hearing.

 Loud sounds while walking or driving distract your attention and may cause traffic

accidents.

Instructional Icons

Before using this manual, please carefully read and understand the following icons:



Warning – Situations that may cause injury to yourself or others

!

Caution – Situations that may cause damage to your device or other equipment



Note – Notes, usage tips, or additional information

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Table of Contents

Contents

Contents ................................................................................................................................................. 6

1 Getting Started ............................................................................................................................... 8

1.1 Package Contents ................................................................................................................ 8

1.1.1 Device and Accessories ........................................................................................... 8

1.2 Battery .................................................................................................................................. 9

1.2.1 How to use ............................................................................................................... 9

1.2.2 Charging the Battery ............................................................................................. 10

1.3 Turning the Device On/Off ................................................................................................ 12

1.3.1 Turning the Device On .......................................................................................... 12

1.3.2 Turning the Device Off .......................................................................................... 12

1.3.3 Standby Mode ....................................................................................................... 13

1.4 Memory Card ...................................................................................................................... 14

1.4.1 Inserting an External Memory Card ..................................................................... 14

1.4.2 Checking Data ....................................................................................................... 15

1.5 SIM Card ............................................................................................................................. 16

1.5.1 Inserting the SIM Card .......................................................................................... 16

2 Basic Use ...................................................................................................................................... 17

2.1 Features .............................................................................................................................. 17

2.2 Key ...................................................................................................................................... 17

2.2.1 Button .................................................................................................................... 17

2.2.2 Keypad ................................................................................................................... 18

2.3 Home Screen ...................................................................................................................... 20

2.3.1 Status Bar .............................................................................................................. 20

2.3.2 Notification Bar ..................................................................................................... 21

2.3.3 Home Screen ......................................................................................................... 21

2.3.4 Dock Bar ................................................................................................................ 23

2.4 Data Input .......................................................................................................................... 23

2.4.1 Virtual Keyboard ................................................................................................... 23

2.5 Device Reset ....................................................................................................................... 24

2.5.1 Soft Reset (1) ......................................................................................................... 24

2.5.2 Soft Reset (2) ......................................................................................................... 24

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2.5.3 Factory Reset ......................................................................................................... 24

2.6 Connecting with a PC ........................................................................................................ 27

2.6.1 How to Connect ..................................................................................................... 27

3 Using the Application Screen ...................................................................................................... 28

3.1 Phone Function .................................................................................................................. 28

3.1.1 Basics ..................................................................................................................... 28

3.2 Wi-Fi .................................................................................................................................... 29

3.2.1 Setting the Wi-Fi Feature ...................................................................................... 29

3.3 Scanner .............................................................................................................................. 31

3.3.1 How to Use Scanner .............................................................................................. 31

3.3.2 Using the Scanner ................................................................................................. 31

3.4 Bluetooth ........................................................................................................................... 32

3.4.1 Setting the Bluetooth Feature ............................................................................. 32

3.4.2 Connecting Using Bluetooth ................................................................................ 33

3.5 NFC ..................................................................................................................................... 34

3.5.1 Setting the NFC Feature........................................................................................ 34

3.5.2 Connecting the NFC Feature ................................................................................ 35

4 Advanced Use ............................................................................................................................... 37

4.1 OS Update .......................................................................................................................... 37

4.2 Key Setting Conversion ..................................................................................................... 38

4.3 Battery Hot swap ............................................................................................................... 41

4.4 Fast Charging ..................................................................................................................... 42

5 Others ........................................................................................................................................... 43

5.1 US20 series Device Specifications .................................................................................... 43

5.2 Service ................................................................................................................................ 45

5.2.1 Contacts ................................................................................................................. 45

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1 Getting Started

1.1 Package Contents

1.1.1 Device and Accessories

The M3 US20 package includes the following items:

M3 US20 Battery Quick Manual

Power Supply USB Cable Cradle

If one or more items above are damaged or are not included in the package, contact the store

where you purchased the device.

※ NOTE

The cradle and all accessories are sold separately. Please refer to the US20 Accessory guide.

Cradle can be provided depending on your purchasing options for "charging and data

synchronization" and "charging, data synchronization, and ethernet connection".

If the device is used for purposes other than the original device use or if it is remodeled, you may

be exposed to electromagnetic waves.

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1.2 Battery

1.2.1 How to use

Inserting the Battery

 Insert the battery from the bottom in the right direction.



M3 US20 uses 3.6 V 6,700mAh Li-ion Battery, 3.7V 2,600mAh Li-ion Battery.



 If an unapproved battery is used, it may explode.

 When a battery is discarded, follow proper disposal procedure.

 Check if the battery is inserted in right direction.

Removing the Battery

 Press and hold the battery lock button on both sides and remove the battery.

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

If the battery is not properly removed, the battery terminal may become bent or

damaged.

Before the battery is removed, close any running program. If it is not closed, an

error may occur in the program.

1.2.2 Charging the Battery

If the following battery warning screen is displayed, charge the battery.

If the device is continuously used without charging the battery, its power will be turned off.

Charging the Battery

 Please connect the device to a cradle that you can additionally purchase to charge the

battery.

 As pictures below, Charging begins when you set a device into the cradle.



AC adaptor is made to be used in 100–240V input, 12V 3A output. If a voltage

beyond the range is supplied, the device may be seriously damaged.

LED Color Description

Red Battery is being charged.

Green Battery is fully charged.



If the battery is used at the temperature other than -20℃ (-4℉) to 60℃ (140℉), the

device may malfunction or break down.

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It takes about 4 hours to fully charge a battery that is fully discharged.



 It is recommended to replace a battery every two year.

 If a battery is charged and used continuously, its lifespan will decrease.

For information on the device battery, Swipe the bottom  Click Settings  Battery

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1.3 Turning the Device On/Off

1.3.1 Turning the Device On

Press and hold Power button until the device vibrates. This will turn the device on and initial

screen will display.



If the battery is completely discharged, problems may occur when the device is

turned on. If a problem occurs, charge the battery before turning on the device

again.

1.3.2 Turning the Device Off

Press and hold the Power button for about one second to display the following pop-up screen.

Select the Power off menu to turn off the power.

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

If the device stops its operation for a long time, press and hold the Power button for

about eight seconds to forcibly reboot the device.

1.3.3 Standby Mode

If the device is not used for a long time, M3 US20 automatically shifts to standby mode to

decrease battery consumption. To manually set the device in standby mode, lightly press the

Power button.

By default, if the device is not used for 30 seconds or longer, it shifts to standby mode. The time

when the device shifts to standby mode can be set by the user.

Swipe the bottom  Click Settings  Display  Sleep to change time that the device

will shift to standby mode.

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1.4 Memory Card

1.4.1 Inserting an External Memory Card

The Micro-SD card is used as an external memory of M3 US20. After removing the battery, insert

SD memory card into the Micro-SD card slot.

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To insert Micro-SD card,

1. Remove battery cover on the rear of the device and pull out the battery.

2. Slide the Micro-SD card holder up to open it.

3. Place the SD card in the correct direction.

4. Slide the Micro-SD card holder down to lock it.



Android™ 10, the OS used in M3 US20, can support up to 512 GB for external memory.

1.4.2 Checking Data

Information stored in the Micro-SD card can be checked by swiping bottom  Click Files

or File manager  Menu  SD card

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1.5 SIM Card

1.5.1 Inserting the SIM Card

SIM card supports voice call and data transfer through mobile communications. The card should

be the one verified by a local network supplier.

To insert SIM card, remove battery cover on the rear of the device and pull out the battery.

Slide the SIM card holder upwards to open it and place the SIM card in the correct direction and

slide the SIM card holder down to lock it.

Either the front or back of the SIM card can be connected to dual slot.



After inserting the SIM card, close the holder and lock it in the downward direction.

For more information on how to use the phone, please see phone functions section.

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2 Basic Use

2.1 Features

Device Layout

① Receiver

② Charging LED

③ Sensor

④ Ear jack

⑤ Screen

⑥ Scanner Button

⑦ C-type USB

⑧ Microphone

⑨ Power Button

⑩ Function Button

⑪ Charging Contacts

⑫ Scanner

⑬ Rear Camera

⑭ Speaker

⑮ Battery Lock Button

⑯ Battery

2.2 Key

2.2.1 Button

Button

Description

Scanner Operate scanner while executing scanner program.

Function Execute the work set to the button.

Power Power on/off screen or shut off power

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2.2.2 Keypad

The M3 US20 has three optional keypad types:

Numeric (30 keys) Function Numeric (42 keys) Alpha Numeric (51 keys)

Key Description

M1 / M2 This is a key to automate repetitive input of the keypad, and

it is set to perform the operation assigned to the M1/M2 key

in Keytool App.

Scan (yellow)

Used in the ScanEmul App, press this key to scan barcodes. It

functions the same as the scan key on the side of the device.

Scroll Keys

(Left / Up / Down / Right)

Move up, down, left, or right from one item to another. You

can increase or decrease the specified value.

ESC

This is the function to end the current task.

CTRL

This is a key pressed in combination with other keys, and

when activated, the icon ( ) appears in the status bar.

ALT

This is a key pressed in combination with other keys, and

when activated, the icon ( ) appears in the status bar.

Shift This is a key pressed in combination with other keys, and

when activated, the icon ( ) appears in the status bar.

If you press the Shift key twice in succession, you can

maintain the Shift state, and the icon in the status bar

changes. ( )

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TAB

This is the function to move the cursor.

Alpha (Orange)

Press the orange Alpha key to activate the alphabetic

character (it is orange on the keypad). The Alpha icon ( )

appears in the status bar. Press the orange alpha key again

to return to the basic keypad functions.

FN (Blue)

Press the blue FN key to activate the alternative function (it

is blue on the keypad). The FN icon ( ) appears in the

status bar. You can lock the FN function by pressing the FN

key twice in succession. ( )

★

Activate 9 additional symbol tables on the screen as a 3x3

matrix. You can lock this function by pressing the ★ key

twice in succession. Use the Keytool App to change settings.

Power (Red) Press the power key once to activate the device's sleep

mode. Press and hold the power key to display a menu on the

screen that allows you to use Power off / Restart / Screenshot

/ Emergency call.

SPACE

Enter a space in the text input screen.

BKSP

Erase a text in the text input screen.

ENT In the text input screen, functions such as checking or

selecting a newline or certain conditions are performed.

Numeric (30 keys)

Use the numeric keypad as the default. If you activate the

orange Alpha key, you can use alphabetic, and if you activate

the blue FN key, you can additionally use F1~F10 and volume

control.

Function Numeric (42 keys)

Use the numeric and special function keypads as the default.

If you activate the orange Alpha key, you can use alphabetic.

Alpha Numeric (51 keys)

Use the numeric and alpha keypads as the default.

If you activate the orange Alpha key, you can use the scroll

keys, and if you activate the blue FN key, you can additionally

use F1~F10 and volume control.

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2.3 Home Screen

If the device is turned on, the following screen will be displayed. The screen is divided into six

sections as follows:

Notification Bar

⇦

⇨

Status Bar

⇨

Quick Search Bar

⇨

Home Screen

⇨

Dock Bar

⇨ Navigation Bar

2.3.1 Status Bar

The Status Bar displays status of the device.

Icon

Icon Name

Description

Battery Battery charging status or battery residual capacity

Phone Call strength or no signal

Sound / Vibration Sound or Vibration status of the device

Wi-Fi Wi-Fi connection/disconnection

Bluetooth Bluetooth connection/disconnection

GPS Status of searching the location data

Alarm Alarm activation status

Airplane Mode Activation status of Airplane mode

NO SIM SIM card is not connected

FN key Function key

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